Non-invasive ultrasonic body contouring

• US 7,815,570 B2
• Filed: 06/12/2007
• Issued: 10/19/2010
• Est. Priority Date: 01/03/2001
• Status: Expired due to Fees

• Current Assignee: Ultrashape Ltd.
• Original Assignee: Ultrashape Ltd.
• Inventors: Eshel, Yoram, Vitsnudel, Ilia
• Primary Examiner(s): Casler; Brian
• Assistant Examiner(s): LAMPRECHT, JOEL
• Application Number:
  US11/808,632
• Publication Number:
  US 20080281201A1
• Time in Patent Office: 1,225 Days
• Field of Search: 600/437, 600/439, 600/443, 600/447, 600/2, 600/10, 600/407, 601/2, 601/3, 604/22, 606/2.5
• US Class Current: 600/437
• CPC Class Codes: A61B 17/225 for extracorporeal shock wave lithotripsy [ESWL], e.g. by using ultrasonic waves
• CPC Class Codes: A61B 2017/00022 Sensing or detecting at the treatment site
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2017/2253 using a coupling gel or liquid
• CPC Class Codes: A61B 2034/2065 Tracking using image or pattern recognition
• CPC Class Codes: A61B 2034/2072 Reference field transducer attached to an instrument or patient
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 2090/3937 Visible markers
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 34/25 User interfaces for surgical systems
• CPC Class Codes: A61B 8/08 Detecting organic movements or changes, e.g. tumours, cysts, swellings A61B8/02 - A61B8/06 take precedence
• CPC Class Codes: A61B 90/361 Image-producing devices, e.g. surgical cameras
• CPC Class Codes: A61N 2007/0008 Destruction of fat cells
• CPC Class Codes: A61N 7/00 Ultrasound therapy lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 ; using ultrasound for introducing media into the body A61M37/0092

Abstract

A methodology and system for lysing adipose tissue including directing ultrasonic energy at a multiplicity of target volumes within the region, which target volumes contain adipose tissue, thereby to selectively lyse the adipose tissue in the target volumes and generally not lyse non-adipose tissue in the target volumes and computerized tracking of the multiplicity of target volumes notwithstanding movement of the body.

Claims

1. A method for lysing adipose tissue comprising the steps of:

generating, at a source outside a body, ultrasonic energy; and

directing said ultrasonic energy, from said source outside said body, at one or more target volumes of a body containing both adipose tissue and non-adipose tissue;

wherein directing ultrasonic energy is performed upon receiving an indication from a cavitation detector and upon detection of non-lysed adipose tissue in the one or more target volumes, wherein said ultrasonic energy selectively lyses adipose tissue in said one or more target volumes and generally does not lyse said non-adipose tissue in said one or more target volumes, which receive said ultrasonic energy.

2. The method according to claim 1, wherein the indication from the cavitation detector is indicative of cavitation.

3. The method according to claim 1, wherein the indication from the cavitation detector is indicative of no cavitation.

4. The method for lysing adipose tissue according to claim 1 and wherein said directing ultrasonic energy generally prevents lysis of tissue outside of said one or more target volumes.

5. The method for lysing adipose tissue according to claim 1 and also comprising:

ultrasonic imaging of said region at least partially concurrently with directing said ultrasonic energy at said one or more target volumes.

6. The method for lysing adipose tissue according to claim 1 and wherein said directing comprises positioning at least one ultrasonic transducer relative to said body in order to direct said ultrasonic energy at said one or more target volumes.

7. The method for lysing adipose tissue according to claim 1 and wherein said directing comprises varying the focus of at least one ultrasonic transducer in order to direct said focused ultrasonic energy at said one or more target volumes.

8. The method for lysing adipose tissue according to claim 7 and wherein varying the focus changes the volume of said one or more target volumes.

9. The method for lysing adipose tissue according to claim 7 and wherein varying the focus changes the distance of said one or more target volumes from said at least one ultrasonic transducer.

10. The method for lysing adipose tissue according to claim 5 and wherein said directing comprises positioning at least one ultrasonic transducer relative to said body in order to direct said ultrasonic energy at said one or more target volumes.

11. The method for lysing adipose tissue according to claim 5 and wherein said directing comprises varying the focus of at least one ultrasonic transducer in order to direct said focused ultrasonic energy at said one or more target volumes.

12. The method for lysing adipose tissue according to claim 9 and wherein varying the focus changes the volume of said one or more target volumes.

13. The method for lysing adipose tissue according to claim 9 and wherein varying the focus changes the distance of said one or more target volumes from said at least one ultrasonic transducer.

14. The method for lysing adipose tissue according to claim 1 and also comprising sensing ultrasonic energy coupling to an external surface of said body adjacent said one or more target volumes.

15. The method for lysing adipose tissue according to claim 1 and wherein said ultrasonic energy has a frequency in a range of 50 KHz-1000 KHz.

16. The method for lysing adipose tissue according to claim 1 and wherein said ultrasonic energy has a frequency in a range of 100 KHz-500 KHz.

17. The method for lysing adipose tissue according to claim 1 and wherein said ultrasonic energy has a frequency in a range of 150 KHz-300 KHz.

18. The method for lysing adipose tissue according to claim 1 and also comprising modulating said ultrasonic energy wherein said modulating provides a duty cycle between 1:

2 and 1;

250.

19. The method for lysing adipose tissue according to claim 1 and also comprising modulating said ultrasonic energy wherein said modulating provides a duty cycle between 1:

5 and 1;

30.

20. The method for lysing adipose tissue according to claim 1 and also comprising modulating said ultrasonic energy wherein said modulating provides a duty cycle between 1:

10 and 1;

20.

21. The method for lysing adipose tissue according to claim 18 and wherein said modulating provides between 2 and 1000 sequential cycles at an amplitude above a cavitation threshold.

22. The method for lysing adipose tissue according to claim 18 and wherein said modulating provides between 25 and 500 sequential cycles at an amplitude above a cavitation threshold.

23. The method for lysing adipose tissue according to claim 18 and wherein said modulating comprises modulating the amplitude of said ultrasonic energy over time.

24. The method according to claim 1, further comprising defining a region in the body at least partially by detecting spatial indications on said body, wherein said region comprises the one or more target volumes of the body.

25. The method according to claim 1, and wherein said directing comprises directing focused ultrasonic energy at a multiplicity of target volumes.

26. The method according to claim 25, further comprising computerized tracking of said multiplicity of target volumes notwithstanding movement of said body.

27. Apparatus for lysing adipose tissue comprising:

a focused ultrasonic energy director, adapted for directing focused ultrasonic energy at one or more target volumes in a region of a body, said one or more target volumes containing both adipose tissue and non-adipose tissue; and

a modulator, cooperating with said energy director, said modulator is adapted to produce a focused ultrasonic energy so as to selectively lyse said adipose tissue in said one or more target volumes and generally not lyse non-adipose tissue in said one or more target volumes, which receive said ultrasonic energy, wherein said modulator is adapted to produce the focused-ultrasonic energy upon receiving an indication from a cavitation detector and upon receiving an indication of non-lysed adipose tissue in the one or more target volumes.

28. The apparatus according to claim 27, wherein the indication from the cavitation detector is indicative of cavitation.

29. The apparatus according to claim 27, wherein the indication from the cavitation detector is indicative of no cavitation.

30. The apparatus for lysing adipose tissue according to claim 27, and wherein said director ultrasonic energy generally prevents lysis of tissue outside of said one or more target volumes.

31. The apparatus for lysing adipose tissue according to claim 27 and also comprising:

ultrasonic imager adapted for providing ultrasonic imaging of said region at least partially concurrently with directing said ultrasonic energy at said one or more target volumes.

32. The apparatus for lysing adipose tissue according to claim 27 and wherein said director comprises a positioner adapted to positioning at least one ultrasonic transducer relative to said body in order to direct said ultrasonic energy at said one or more target volumes.

33. The apparatus for lysing adipose tissue according to claim 27 and wherein said director is further adapted to vary the focus of at least one ultrasonic transducer in order to direct said focused ultrasonic energy at said one or more target volumes.

34. The apparatus for lysing adipose tissue according to claim 33 and wherein varying the focus changes the volume of said one or more target volumes.

35. The apparatus for lysing adipose tissue according to claim 33 and wherein varying the focus changes the distance of said one or more target volumes from said at least one ultrasonic transducer.

36. The apparatus for lysing adipose tissue according to claim 32 and wherein said director is further adapted to position at least one ultrasonic transducer relative to said body in order to direct said ultrasonic energy at said one or more target volumes.

37. The apparatus for lysing adipose tissue according to claim 32 and wherein said director is further adapted to vary the focus of at least one ultrasonic transducer in order to direct said focused ultrasonic energy at said one or more target volumes.

38. The apparatus for lysing adipose tissue according to claim 27 and also comprising a sensor adapted to sense ultrasonic energy coupling to an external surface of said body adjacent said one or more target volumes.

39. The apparatus for lysing adipose tissue according to claim 27 and wherein said ultrasonic energy has a frequency in a range of 50 KHz-1000 KHz.

40. The apparatus for lysing adipose tissue according to claim 27 and wherein said ultrasonic energy has a frequency in a range of 100 KHz-500 KHz.

41. The apparatus for lysing adipose tissue according to claim 27 and wherein said ultrasonic energy has a frequency in a range of 150 KHz-300 KHz.

42. The apparatus for lysing adipose tissue according to claim 27 wherein said modulator is adapted to provide a duty cycle between 1:

2 and 1;

250.

43. The apparatus for lysing adipose tissue according to claim 27 wherein said modulator is adapted to provide a duty cycle between 1:

5 and 1;

30.

44. The apparatus for lysing adipose tissue according to claim 27 wherein said modulator is adapted to provide a duty cycle between 1:

10 and 1;

20.

45. The apparatus for lysing adipose tissue according to claim 27 wherein said modulator is adapted to provide between 2 and 1000 sequential cycles at an amplitude above a cavitation threshold.

46. The apparatus for lysing adipose tissue according to claim 27 wherein said modulator is adapted to provide between 25 and 500 sequential cycles at an amplitude above a cavitation threshold.

47. The apparatus for lysing adipose tissue according to claim 46 and wherein said modulator is further adapted to modulate the amplitude of said ultrasonic energy over time.

48. The apparatus according to claim 27, further comprising a region definer adapted to define a region in the body at least partially by detecting spatial indications on said body, wherein said region comprises the one or more target volumes of the body.

49. The apparatus according to claim 27, and wherein said director is further adapted to direct focused ultrasonic energy at a multiplicity of target volumes.

50. The apparatus according to claim 27, further comprising computerized tracking functionality adapted to track said multiplicity of target volumes notwithstanding movement of said body.